International Case Study Development of DECT - DECT Forum India

19th Convergence India 2011
International Exhibition & Conference
Pragati Maldan, New Delhi, India
International Case Study
Development of DECT
by Dag Åkerberg
CTO DECT Forum

The DECT Forum
• Association of the Global Home and Enterprise
Communication Industry (46 members 2011)
• DECT Forum India Chapter

What is DECT ?
DECT
Digital Enhanced Cordless Telecommunications
a general Wireless Access technology
standardised by ETSI
the European Telecommunications Standardisation Institute
and by ITU as the IMT-2000 (3G) family member IMT-2000 FDMA/TDMA
DECT has become a world leading (100 M devices/year)
wireless access technology for Cordless voice, Broadband
Home networking and Enterprise local mobility
solutions.
DECT provides unique Coexistence Properties between
these private applications and DECT WLL systems on a
common spectrum.

Introduction
• The DECT cordless technology could become one of the significant
contributors to improve telecom services in India.
• This presentation deals with the opportunities for India to apply the
DECT technology on a broad scale for effective high quality local
mobility services for homes and offices/enterprises/hospitals
• The key requisite is a frequency block of 10-20 MHz within the band
1880-1920 MHz allocated to DECT systems exempted from individual
license

DECT World Map
Year 2010

FP
PPtPP
Residential
Cordless
Home Automation
Application fields of unlicensed
DECT and CAT-iq
WRS
...
PP
...
The World of
DECT
Telematics,
Machine to machine
Industrial
FP
Cordless
SoHo and SME/SMB
Large Enterprise Business
FP
...
Multiple,
synchronized
base stations
...
...

Introduction to DECT
A successful mass market technology
DECT, DECT 6.0 and their successor CAT-iq are worldwide adopted
technologies with high relevance for cordless voice, home networking and
enterprise local mobility solutions
Spectrum available in
about 100 countries
Mature, cost efficient, many manufacturers
main cordless technology of the world
More than 800 million devices sold and growing by more than 100 million
devices per year
World Market Share 2010 (increases each year):
Residential + SOHO: 82% of totally 5300 M US$ (Source: MZA Ltd 2011)
Enterprise mobility PBX: 65% of totally 900 M US$ (Source: MZA Ltd 2011)
78% in Europe (Source: ASCOM 2008)

Differentiation of DECT technology
to normal digital cordless
• Brilliant quality of voice and sound
• High protection: Cellular level ciphering and authentication
• Supports medium rate data services: E.g. SMS, MMS, PC connectivity,
Web surfing, VoIP and Instant Messaging
• Complementary to WLAN and Bluetooth
• Better QoS, Security, battery lifetime
• Highly Spectrum efficient, un-coordinated operation in unlicensed band
• IMT-2000 technology, approved by ITU
• Useful for residential and business applications

Duplex channels and
double simplex channels
have slots separated
exactly 5 ms using
the same carrier
Very efficient sharing
Totally 12 per carrier
Transmitted timeslot from
Base =>Terminal
Received timeslot at
Base
The 1880 – 1900 MHz band
has 10 (11) DECT carriers
120 (132) access channels
The DECT frame structure MC/TDMA/TDD
Defined for high quality real time access
Carrier 1
Carrier 4
Carrier 6
Carrier 10
5 ms.
TDMA Frame: 10 ms.
5 ms.
Base => Terminal
Terminal => Base
1 2 3 . . 10 11 12 1 2 3 . . 10 11 12
Frequency
DECT base station, handset and relay stations has a single radio that can access all 120
access channels. Can simultaneously access max 12, minimum 6 (residential). See example.
Time

Internet
surfing
Home
control
.
Residential & SOHO cordless phones - new business
opportunities for the wire line and WLL operator (1)
Residential PSTN wire
Cable
WLL
Small Office Intercom
with 6-10 handsets

Residential & SOHO cordless phones - new business
opportunities for the WLL/cellular operator (1)
. Small Office Intercom
Residential
with 6-10 handsets
DECT (+WLL)
Access to/from public
network wireless/cellular
(GSM or 3G) operator
Main floor, upper flor,
basement and garden
covered by one DECT
base station
8,2 M SMEs
In India
DECT (+WLL)
Business opportunity or cellular operator
•When marginal cellular coverage
•When interested to off-load internal calls
from the cellular soectrum

Residential system
(single cell)
Main floor, upper flor,
basement and garden
has to be covered by
one base station
DECT provides 100 % coverage in
homes and enterprises
8-10 dBi
Enterprise system (pico-cell)
Every spot has to be covered, including elevators, culverts
and sometimes outdoor areas belonging to the enterprise
Basement
Wireless DECT base stations
where lack of transmission line

• Broadband speech
• VoIP
• IP connectivity
• Interoperability
• Certification tests
Residential & SOHO cordless phones - new business
opportunities for the operator (2)
The new broadband DECT standard
• Technology is adopted
• Products in the market
• Further development of features
DECT
voice

Internet
PSTN
ISDN
VoIP
(IMS) Network
The Future of DECT is CAT-iq, especially
designed for feature-rich wideband voice
services connected to broadband wireline
The switch to VoIP and All-IP networks
may appear faster than expected
Rollout 2011 in EU
CAT-iq uses same frequency band
and follows same rules as DECT does.
WiFi
DECT

Internet / Broadband
D Telecom
Home Gateway / IAD
• WiFi Router
• DECT/CAT-iq Base
System Solutions for
Homes and Small Offices
Voice and
light Data
Service
Internet
Access
DECT
Android
Home Phone Handset
with Charger

Access to the
Public Network
LTE WLL
3G Cellular
UMTS FDD
System Solutions Homes / Small Offices
for WLL and Cellular Operators
Fritz!Box LTE 6840 by AVM
Tele2 Sweden (competitive)
Home Gateway
WiFi Router
PSTN connector
LAN connector
DECT or telephone
Voice and
light Data
Service
Internet
Access
DECT

Residential & SOHO cordless phones
Summary
• The residential market is the mass market driver, and thus the key to
the other DECT applications/markets
• DECT is the dominant residential cordless technology
• Impact of other new technologies remains small
• CAT-iq will bring additional benefits to strengthen DECT’s preferred
technology position
• Introducing DECT Residential and SOHO enterprise systems on a
general license in India, increases voice quality, efficiency and
reliability for users and will create local manufacturing and open export
opportunities to the 100 countries DECT market.
• DECT Residential & SOHO cordless phones – create new business
opportunities for wire-line, cable and cellular operator

� Hospital
� Workflow efficiency
� Portering
� Trauma team alert
� Industry
Office/Enterprise Systems
KEY VERTICAL MARKETS
� Machine stoppage – down-time reduction
� Lone worker protection
� Elderly Care
� Alarm notification
� Task administration
� Secure Establishments
� Paging
� Worker protection

THE BENEFITS OF DECT IN
THE VERTICAL MARKETS
� Excellent voice quality
� Interference free
� Ciphering and Authentication at cellular security level
� Messaging
� DECT speed sufficient to support messaging and personal alarm
� Simultaneous use of messaging and voice
� Interactivity
� Broadcast and multicast
� Accurate location services
� High reliability: essential in mission-critical applications
� Easy to deploy and maintain: ‘over the air’ administration
� Low cost infrastructure and handsets

Large Enterprise Scenario
Office/Enterprise Systems
Improved Reliable Local Access
Base
Stations
Up to 20 000 subscribers
Up to 10 000 E/sqkm/floor
Handsets are always locked to closest (strongest) base (high capacity).
Automatic seamless handover as soon as an other base becomes
stronger ( high quality of service ).
Handset controlled decentralized handover using instant Dynamic
Channel Selection. (The fixed infrastructure has no complex base
station coordination or tricky channel selection requirements)

Telephony
Switch A
Vendor X
IP-DECT Gateway
IP-DECT Solution
Seamless handover
Legacy Base Stations
Telephony
Switch B
Vendor Y
1.5km
IP-DECT Gateway
IP Network
IP-DECT Base Stations
Telephony
Switch C
Vendor Z
100m
ASCOM 2008
Unite Interface
& Application
Suite

IP-DECT and SIP enables growth
� Scalability without limitations:
Scalability
� Independent of PBX deployment:
Features
» Less functionality & scalability limits
Markets
� Unified deployments world-wide:
» World/continent-wide roaming / Handover (HLR/VLR)
� Simplicity:
» Standards based connectivity and administration
� New customers and segment interests pop-up:
» Multi-national corporate deployments
» Hosted Communication platforms & IP-Centrex
Scalability
Features

Some implementations in Healthcare
Allgemeines Krankenhaus der Stadt
Wien – Universitätscampus (AKH)
Very large campus with many hundreds
of (IP)DECT APs.
Is part of Kranken Anstalten Verbund
(KAV) moving to same PBX/Mobility
solution in all locations
Medical Center Leeuwarden,
Netherlands
General hospital with 770 beds and
over 1,000 staff
IP DECT with more than 300 APs
combined with messaging
integration.
First IP DECT customer exceeding
256 AP’s

Competing Technologies for
Enterprise Local Mobility Services
Large Big choice of technologies
DECT, WiFi, Mobile/FMC, Pico/Femto, ……..
• Voice over WLAN (WiFi)
Requires perfectly designed voice prepared WLAN
but … no dedicated spectrum ….quality and capacity issues
• FMC
Choice if you want a single device in-house/out-of-office
but … complex and costly…. could be coverage/capacity issues (basements)
• Pico/Femto
Choice when full coverage and capacity is required
but …..planning/handover/business case issues…near/far interference issues
• DECT Outstanding performance and local service integration….
THERE IS NO ALTERNATIVE THAT OFFERS THE SAME

ENTERPRISE WIRELESS PICO CELL
TECHNOLOGY SHARES
Enterprise with pico cell infrastructure with handover
VoWiFi: 8%
GSM: 5%
OSP: 5%
TETRA: 3%
DECT: 78%
Source: ASCOM
2008
Impact of competing technologies remains small
Residential HO/SO Cordless Phone market shares
Where WiFi and DECT spectrum is available
DECT: Europe 100 %, The US 65-70 % after 4 years

Office/Enterprise Local Mobility Systems
Summary
• The local mobility (cordless) PBX market is stable
• DECT remains the dominant wireless technology for local mobility
• Impact of new technologies remains small
• IP-DECT brings new business opportunities driven by the overall
migration to IP and SIP standardization
• CAT-iq will bring additional benefits to strengthen DECT’s preferred
technology position in the enterprise
• DECT for the quality voice and mission critical applications and WLAN
for the best effort high data rate applications is a perfect match
• Introducing DECT enterprise systems on a general license in India,
increase efficiency and reliability in office/enterprise/hospital
communications, remove onsite mobile traffic from loaded cellular
systems, create local manufacturing and open export opportunities to
the 100 countries DECT market.
DECT: DIGITAL ENTERPRISE CORDLESS TELECOMMUNICATIONS!!

The spectrum for DECT
DECT has access to a protected spectrum in about 100 countries. The DECT
spectrum is located in the guard band between up-links and down-links of
cellular spectrum allocations, which else would be difficult to use effectively
Countries DECT allocation
Adjacent Cellular
Technologies
Europe, Australia, New 1880–1900 MHz GSM, 3G,
Zeeland, several Asian &
African countries
(LTE, Wimax)
Lesoto 1900-1920 MHz
Most Latin American countries 1910-1930 MHz GSM, CDMA, 3G
Brazil and Uruguay 1910-1920 MHz GSM, CDMA, 3G
USA, Canada and a few Latin 1920–1930 MHz GSM, CDMA, 3G,
American countries
(LTE)
Japan 1894–1904 MHz PHS (no cellular)
Table. Overview of DECT license exempt allocations and adjacent cellular
technologies

The way Forward
INDIA IS PRESENTLY MSSING ON IMPORANT COMPONENT FOR
EMPOWERING THE MILLIONS WITH 3G SERVICES
DECT Forum is proposing that India extends the use of DECT to include
license exempt residential applications (cordless phones) and
enterprise use (business cordless phones), in line with common
practice in other countries.
It is required to adopt 20 MHz in-between 1880-1920 MHz for this
extension.
� Bringing world class - high quality voice and broadband data
networking to Indian homes and enterprises.
� Reduce load on urban cellular spectrum.
� Indian manufacturing base can be utilized to capitalize on domestic
and export markets.